Protector for safety-razor blades.



'No. 875,274 PATENTED DEC. 31, 1907.

F. B. KING.

'4 I v i n2 3 v v WWW A/ handle of the razor.

FREDERICK BUNNELL KING, OF BRIDGEPORT,-OONNEGTICUT, ASSIGNOR, BY MESNE ASSIGNMENTS, TO GILLETTE SAFETY RAZOR COMPANY, OF BOSTON, MASSACHU- SETTS, A CORPORATION OF MAINE.

PROTECTOR FOR SAFETY-RAZOR BLADES.

are. 875,274.

Specification of Letters Patent.

Patented Dec. 31,1907.

Application filed May 8. 1907. .Serial No. 372,462.

To all whom it may concern:

Be it known that I, FREDERICK BUNNELL KING, a citizen of the United States, and resident of Bridge ort, in the county of Fairfield and State of onnecticut, have invented a new and useful Improvement in Protectors for Safety-Razor Blades, of which the followin is a specification.

his invention consists in a protector for the blade of a safety razor and is particularly designed for use in protecting the blade of a safety razor of the .well known Gillette type where the tendency of the blade is to return to its normal position when the parts are loosened, the protector being arranged to be frictionally held in its protective position by the separation of the back late and guard of the razor due to the sai tendency of the blade to return to its normal position.

'This rotector alsoserves to hold the back plate, t e blade and the guard in assembled adjustment when they are detached from the A'practical embodiment of the invention is represented in the accompanying drawings,

vinwhich Figure 1 is a side view of the arts inclosed by the protector shield when I the handleof the safety razor, Fig. 2 is a top plan viewof the same, Fig.3 is a bottom plan .view, Fig. 4 is a top plan view of the pro-.

tector, Fig. 5 is an end view of the back plate,

the blade and the guard inclosed in the pro-:

tector and a side view of the detached handle, Fig. 6 is'a bottom plan view of the protector, Fig. 7 is a view of the razor with the arts assembled, the view bein partially in ongitudinal central section an partially in side elevation, the protector being shown as released from its frictional engagement with the-back plate and guard to permit its ready removal therefrom. Fig. 8 is a top'plan View of the razor with the protector removed, Fig.

9 .is a bottom plan view of the same, Fig. 1.0 is a detail plan view of the blade, and Fi s,

i 11, 12, 1'3, 14 and 15 are detail views of t e protector, the back plate, the blade, the

guard and the handle, respectively.

The back plate of the safety razor in connection with which my protector is shown, is

' denoted by 1 and it hasa screw-threaded bolt 2 uprising therefrom. The handle of the razor is denoted by 3 and it has-a screwstuds 10 and 11 of the back plate.

forced out of its normal position.

handle is unscrewed from the bolt 2, the

etached from threaded engagement with the bolt' 2 of the back plate for rem'ovably securing, the handle thereto. The blade is denoted by 4 and it is herein shown as being provided with two opposite cutting edges 5, 6 and with a hole 7 for the passage ofthe screw bolt 2 of the back plate therethrough. This blade is also pro.- vided with holes 8 and 9 for receiving short studs 10, 11, which uprise from the back plate 1 upon opposite sides of the screw bolt 2. This blade is made of some flexible ma terial, such, for instance, as sheet steel.

The guard is denoted by 12 and is provided with a central hole 13 for the passage of the screw bolt 2 of the back plate therethrough and also with holes 14, 15, for receiving the The surfacesof the back plateandguard adj acentto the opposite faces'of the blade 4, are curved transversely so that as the back plate and guard are drawn together by the screwing of the handle on to the bolt 2, the blade gill lhe tendency of the blade to return-to its normal position will force the back plate and guard away from each other.

The protector for the ttin edge or edges of the blade comprises shield side ed es '17; 18, bent over toform pockets 19, 20, or inc'losingthe cutting edges 5, 6 of the blade when the shield is inserted over the back plate, the blade and the guard. This shield is transversely curved as shown and is of such shape that when the arts are drawn into position for usefthe shie (1 may be readily slid into and out of its protective osition. When it is desiredfto frictionally liold the shield in its protective position, the handle is unscrewed from the back plate, thus permit- 16 having its 4 ting the back plate and guard to be forced ting the parts to be dpacked into a very small compass when not; esired for use.' 1 It is evident the various chan resorted to in the construction, orm andarrangement' of the several parts without departing from the spirit and scope of my in- I vention; hence I do not wish to limit myself strictly to the form herein shown, but

What I claim is: 4

1. vIn a-safety razor, a handle, .a back plate, a flexible blade, a guard and a protector comprising a removable shield for frictionally retaining the back plate, the blade and theguard in assembled adjustment by the spreading apart of the back plate and guard owing to the tendency of the blade to return to its normal position when the parts are released from the-handle.

. 2. In a razor, a back plate, a'flexible blade having a cutting edge, a guard and a removable shield for lnclosingthe cutting ed eof i the blade, engaged and frictionally he d guard.

able's ield for'inclosing the cutting ed e ofthe blade, arranged to be frictionally he d in position bythe spreading apartof the back plate and guard by the tendency of the blade to return to its normal position.

'5. In a razor, a back plate, a flexible blade having two opposite cutting edges, a guard and a removable shield for inclosing the cutting edges of the blade arranged tobe-frictionally held in position by the spreading;

apart of the back plate and guard by the tend' ency of the sition. .7 es might be I blade to return to its normal po- ,6. In a razor, a handle, a backplate, a flexible blade having a cutting'edge, a guard and a removable shleld for the cutting ed e v of the blade arranged to be frictionally he (1 and released as'the back plate andguard are moved away from or toward each other. b 7. In a razor, a handle, a back plate, a" v flexible blade having two 0 posite cutting edges, a guard and a removab e shield for the cutting edges of the blade arranged to be frictionally held and released as the back plate and guard are moved away from or toward each other. T

8. In a razor, a back plate, a handle having a screw-threaded engagement therewith, a guard, a flexible blade interposed between the back platea-nd guard and a removable shield for the cutting edge of the blade arranged to be frictionally held and released as the back plate and guard are moved away from oritoward each other as the handle is turned.

9. In a razor, a back plate, a handle havi ing a screw-threaded engagement therewith,

a guard, a flexibleblade inter osed between the back plate and guard an a removable shield for the cutting ed es of the blade arranged to be frictionally" eld and released as the back plate and guard are moved away from. or toward each other asthe handleis turned.

a In testimony, that claim the foregoingas my invention, I have signed my name in- 1 presence of two witnesses, this sixth day of lay, 1907. I I 4 FREDERICK BUNNELL KING.

'Witnesses': I I

HEN Y GREENsTEI'N,

j 'JzA. PEAsE. 

